Phoenix STEP-PS/ 1AC/12DC/1.5/FL Power Supply
The Phoenix STEP-PS/ 1AC/12DC/1.5/FL Power Supply (Item No: 2868554 ) offers a 85 V AC ... 264 V AC input voltage range, > 84 % (for 230 V AC and nominal values) efficiency, 12 V DC nominal output voltage, 1.5 A (-25 °C ... 55 °C) nominal output current. Manufactured by Phoenix under the Phoenix Power Supply category, this model belongs to the Phoenix STEP Series.
| Brand | Phoenix Contact |
| Product Type | Power Supply |
| Model Number | STEP-PS/ 1AC/12DC/1.5/FL |
Phoenix STEP-PS/ 1AC/12DC/1.5/FL Power Supply – Technical Specifications
| Specification | Value |
|---|---|
| Nominal input voltage range | 100 V AC ... 240 V AC |
| Input voltage range | 85 V AC ... 264 V AC |
| Inrush current | < 15 A (typical) |
| Efficiency | > 84 % (for 230 V AC and nominal values) |
| Nominal output voltage | 12 V DC |
| Nominal output current (IN) | 1.5 A (-25 °C ... 55 °C) |
| Residual ripple | < 75 mVPP (20 MHz) |
| Power loss nominal load max. | < 3.2 W |
| Insulation voltage input/output | 4 kV AC (type test) |
| Mounting type | DIN rail mounting |
| Degree of protection | IP20 |
| Ambient temperature (operation) | -25 °C ... 70 °C (> 55° C derating : 2.5%/K) |
| EMC requirements for noise emission | EN 61000-6-3 |
| EMC requirements for noise immunity | EN 61000-6-1 |
The Phoenix STEP Power Supply STEP-PS/1AC/12DC/1.5/FL (Item No: 2868554) is designed to meet the stringent demands of modern industrial applications. It operates efficiently across a broad input voltage range of 85 V AC to 264 V AC, ensuring compatibility with global power systems. The unit provides a regulated 12 V DC output with 1.5 A current, maintaining stability with a residual ripple below 75 mVPP even under dynamic load conditions. With an efficiency of over 84% at 230 V AC, it reduces heat generation and energy losses. The power loss remains under 3.2 W, and the device maintains performance in challenging environments from -25 °C to +70 °C, with controlled derating beyond 55 °C.
Built with a 4 kV AC insulation voltage and conforming to EMC standards EN 61000-6-1 and EN 61000-6-3, this model provides reliable electrical isolation and electromagnetic compatibility. The DIN rail mounting system makes it installation-friendly, while the IP20 protection rating ensures safe operation in standard panel enclosures. Inrush current is limited to < 15 A, supporting protective coordination with MCBs and circuit fuses in industrial panels.
The STEP-PS/1AC/12DC/1.5/FL is widely adopted in small control cabinets where 12 V loads such as signal converters, relay coils, or data loggers are required. It is an ideal choice for maintenance engineers working on retrofit projects or for OEMs needing a compact, cost-effective power supply for consistent DC output. Its dependable voltage regulation and robust thermal characteristics make it a preferred unit for electrical engineers designing automation systems in HVAC, building control, packaging machinery, and test equipment environments. Phoenix Contact Official Product Page.
